Controlling spark of an engine with adjustable intake valve...

Details Controlling spark of an engine with adjustable intake valve... Controlling spark of an engine with adjustable intake valve...

2006-09-19

2006-09-19

Argenbright, T. M. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406550, C123S406590, C060S285000

Reexamination Certificate

active

07107965

ABSTRACT:
A system and method to control spark timing of an engine wherein the injection timing of the engine is varied relative to a crankshaft position depending on engine operating conditions. According to the method, spark timing is varied as fuel injection timing varies for at least a portion of the engine operating range. The method can reduce fuel consumption, reduce transient fuel requirements, improve engine performance, and reduce CO emissions, at least under some conditions.

REFERENCES:
patent: 6302082 (2001-10-01), Nagatani et al.
patent: 6438943 (2002-08-01), Yamamoto et al.
patent: 6513488 (2003-02-01), Enoki et al.
patent: 6837040 (2005-01-01), Sonoda et al.
patent: 2001/0006058 (2001-07-01), Kawasaki et al.
patent: 2002/0066436 (2002-06-01), Majima et al.

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